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authorJamie Iles <jamie@jamieiles.com>2011-01-11 12:43:50 +0000
committerChris Ball <cjb@laptop.org>2011-01-25 21:53:51 -0500
commit3119cbda858fc9ae10a69919e5f278abd6d93bb5 (patch)
tree0ac3212b916871cb979e4bf4d454d95988b96b4b /drivers/mmc/host/jz4740_mmc.c
parent9047b435a0b43952f5d1f7eb15a9b63a36efc7f2 (diff)
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mmc: jz4740: don't treat NULL clk as an error
clk_get() returns a struct clk cookie to the driver and some platforms may return NULL if they only support a single clock. clk_get() has only failed if it returns a ERR_PTR() encoded pointer. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/jz4740_mmc.c')
-rw-r--r--drivers/mmc/host/jz4740_mmc.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
index b3a0ab0..74218ad 100644
--- a/drivers/mmc/host/jz4740_mmc.c
+++ b/drivers/mmc/host/jz4740_mmc.c
@@ -14,6 +14,7 @@
*/
#include <linux/mmc/host.h>
+#include <linux/err.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
@@ -827,8 +828,8 @@ static int __devinit jz4740_mmc_probe(struct platform_device* pdev)
}
host->clk = clk_get(&pdev->dev, "mmc");
- if (!host->clk) {
- ret = -ENOENT;
+ if (IS_ERR(host->clk)) {
+ ret = PTR_ERR(host->clk);
dev_err(&pdev->dev, "Failed to get mmc clock\n");
goto err_free_host;
}